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Petroleum products and used oils. Determination of polychlorinated biphenyls (PCB) and related products. Part 2. Determination of PCB content
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Petroleum and natural gas industries. Drilling and production equipment. Wellhead and Christmas tree equipment. General specifications
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Solid biofuels. Determination of total sulphur and chlorine content
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Double tube core barrel for exploration drilling. General technical specifications
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Maleic anhydride for industrial use. Methods of test. Part 1. General
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